The calculated distance (air line) between Cologno al Serio and Ghisalba is approximately 3 miles respectively 4 kilometers.
By car or train, the actual journey to Ghisalba is certainly longer, as only the direct route (as the crow flies) between Cologno al Serio and Ghisalba has been calculated here.
Air line (approximately)
4 kilometers
2 nautical miles